WO2016202990A1 - Procédé et dispositif permettant de faire fonctionner un dispositif de ventilation de siège et dispositif de ventilation de siège - Google Patents

Procédé et dispositif permettant de faire fonctionner un dispositif de ventilation de siège et dispositif de ventilation de siège Download PDF

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Publication number
WO2016202990A1
WO2016202990A1 PCT/EP2016/064022 EP2016064022W WO2016202990A1 WO 2016202990 A1 WO2016202990 A1 WO 2016202990A1 EP 2016064022 W EP2016064022 W EP 2016064022W WO 2016202990 A1 WO2016202990 A1 WO 2016202990A1
Authority
WO
WIPO (PCT)
Prior art keywords
blower
seat
acoustic
value
map
Prior art date
Application number
PCT/EP2016/064022
Other languages
German (de)
English (en)
Inventor
Marek Grünewald
Jörg Helmold
Original Assignee
Volkswagen Aktiengesellschaft
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Volkswagen Aktiengesellschaft filed Critical Volkswagen Aktiengesellschaft
Priority to EP16731109.1A priority Critical patent/EP3310614B1/fr
Priority to US15/575,476 priority patent/US20180162244A1/en
Priority to CN201680033232.4A priority patent/CN107709089B/zh
Publication of WO2016202990A1 publication Critical patent/WO2016202990A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/56—Heating or ventilating devices
    • B60N2/5607—Heating or ventilating devices characterised by convection
    • B60N2/5621—Heating or ventilating devices characterised by convection by air
    • B60N2/5657—Heating or ventilating devices characterised by convection by air blown towards the seat surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H1/00285—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for vehicle seats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
    • B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
    • B60H1/00828—Ventilators, e.g. speed control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/56—Heating or ventilating devices
    • B60N2/5607—Heating or ventilating devices characterised by convection
    • B60N2/5621—Heating or ventilating devices characterised by convection by air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
    • B60H1/00557—Details of ducts or cables
    • B60H1/00564—Details of ducts or cables of air ducts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
    • B60H2001/006—Noise reduction

Definitions

  • the invention relates to a method for operating a seat ventilation device, which has at least one fan and at least one arranged in a seat surface and with the fan ventilation connected ventilation opening, wherein the fan for
  • the invention relates to a device for operating a seat ventilation device, which has at least one fan and at least one ventilation opening arranged in a seat surface and connected to the fan in ventilation fashion, with a control device for operating the fan. Furthermore, the invention relates to a seat ventilation device with such a device.
  • the published patent application DE 10 2012 221 415 A1 discloses a seat ventilation device with a fan arranged in a seat, which is connected by ventilation to a plurality of ventilation openings formed in a seat, so that through the fan a volume flow to the ventilation openings and through them for example for the air conditioning of Vehicle or a person sitting on the seat.
  • Such seat ventilation devices serve to provide the passenger with additional comfort.
  • the blower is controlled by a device electrically / electronically, for example, to set a desired flow rate.
  • back pressure acting on the blower will be partially or completely covered by the person
  • the invention has for its object to provide a method and an apparatus and a seat ventilation device, which ensure a cost effective manner an optimal ventilation function with favorable noise behavior, especially when a brushless DC motor is used as the drive motor for the fan.
  • the problem underlying the invention is achieved by a method having the features of claim 1.
  • the method according to the invention has the advantage that the rotational speed of the seat ventilating device or of the fan is map-controlled, so that a continuous adaptation of the rotational speed to a counter-pressure acting on the fan taking into account permissible noise emissions takes place. According to the invention this is achieved in that the adjusted speed is selected from a map depending on the current state value, the map depending on a predefinable
  • the method thus comprises a part which has to be timed before the seat ventilation device is put into operation, namely the generation of the characteristic diagram.
  • the actual noise behavior of the fan at different conditions, in particular at different back pressures is examined with respect to the noise emissions and deposited the result in the map, so that the stored data can be used in the actual operation of the seat ventilation device, the blower in an optimal operating range based on the delivered volume flow and the generated noise emissions, which are characterized by a measurable acoustic value is operated.
  • the blower for setting the predetermined target speed is controlled and the funded volume flow is varied several times by changing a counterpressure acting on the blower, wherein each measured an acoustic value of the blower and the speed is adjusted so that the measured acoustic value does not exceed a predetermined acoustic limit.
  • acoustic value determined determined acoustic value determined.
  • different acoustic values can be determined for different back pressures or different volume flows of the blower.
  • the rotational speed can be adjusted such that the respectively detected acoustic value does not exceed the predefinable acoustic limit value. This ensures that regardless of the backpressure always the desired acoustic limit and respected
  • the speed is adjusted such that the detected acoustic values in each case according to the predetermined acoustic limit.
  • This embodiment thus provides that the speed of the fan or the motor of the fan is not limited to a maximum value, but that the speed is set to a value at which the maximum permitted acoustic value is reached. This ensures that the maximum possible volume flow is conveyed through the fan in each back-pressure condition of the blower. This achieves an optimum ratio between noise emission and conveyed volume flow or ventilation performance.
  • the acoustic value of the fan is determined continuously in accordance with. If the back pressure alternatively stepwise to create the
  • the number of stages determines the resolution of the map and thus the accuracy of the method when operating the seat ventilation device.
  • the incremental increase can reduce the amount of data, making the process less computationally expensive.
  • interpolation values for intermediate values are then preferably calculated.
  • to create the map of the back pressure can also be reduced gradually or continuously.
  • the actual measured state value of the blower is assigned to the currently measured acoustic value and stored together with the acoustic value in the characteristic map in order to produce the characteristic field.
  • an operating current of an electric motor, in particular a brushless DC motor of the blower is determined or measured as the state value.
  • the operating current changes depending on the backpressure acting on the blower.
  • control unit is specially adapted to carry out the method according to the invention. This results in the already mentioned advantages.
  • control unit has means for detecting the current state value, in particular the
  • the seat ventilation device according to the invention with the features of claim 8 is characterized by the inventive device. This results in the already mentioned advantages.
  • FIG. 2 shows a method for producing an advantageous characteristic diagram as a flowchart
  • Figure 3 shows the behavior of a seat ventilation device with a brushless
  • Figure 4 shows a noise of the seat ventilation device
  • Figure 5 is a simplified illustration of a function of the control device.
  • Figure 1 shows a simplified representation of a vehicle seat 1 of a motor vehicle not shown here, which has a seat part 2 and a backrest 3.
  • the seat part 2 and the backrest 3 each have a seat surface 4, with which a passenger comes into contact when he sits down on the vehicle seat 1.
  • a seat ventilation device 5 Integrated into the backrest 3 is a seat ventilation device 5, which has a fan 6 as well as a plurality of elements arranged / arranged in the seat surface 4 of the backrest 3
  • Ventilation openings 7 includes, which are connected by air ducts in the backrest 3 ventilation with the fan 6.
  • the fan 6 expediently has an electric motor 8 for its drive, which is operated by a control unit 9.
  • the fan 6 is presently designed as a radial fan and the electric motor 8 as a brushless DC motor.
  • the blower 6 or the seat ventilation device 5 is arranged in total only in the seat part 2 or in the seat part 2 and in the backrest 3.
  • the seat ventilation device 5 can be directly installed in the foam of the vehicle seat 1 and glued to a fleece.
  • the seat ventilation device 5 can be suspended in the foam with rubber bands for acoustic decoupling.
  • an air distributor housing which is arranged between the foam and the seat structure.
  • the seat ventilation device 5, in particular the blower 6, can be arranged on the back of a massage or lumbar plate. Also, the
  • Body part of the vehicle seat 1 having motor vehicle be arranged.
  • the seat ventilation device 5 By the seat ventilation device 5, the ride comfort for a person sitting on the seat 1 or for other persons of the same motor vehicle should be increased.
  • a person located on the vehicle seat 1 can be directly ventilated by the seat ventilation device 5 and conditioned, and on the other hand, the seat ventilation device 5 can also be used generally for air conditioning of the vehicle. It should be noted that neither the person located on the vehicle seat 1 and other people are uncomfortably limited in their comfort by a noise of the blower 6.
  • the fan 6 promotes a volume flow through the air ducts to the
  • Ventilation holes 7 If a person is standing on the vehicle seat 1, the ventilation openings are completely or partially covered by the person, so that a
  • FIG. 2 shows in a simplified flowchart a method for producing an advantageous map KF, which is used to operate the seat ventilation device 5.
  • a current rotational speed of the brushless DC motor 8 can be detected sensorless by detecting the counter voltage in its stator. This value can be evaluated electronically and thus the speed can be kept constant regardless of a counterpressure acting on the blower 6.
  • volumetric flow V at a constant speed the speed of the curve K1 is greater than that of the curve K2, and the speed of the curve K2 greater than that of the curve K3.
  • the values shown in FIG. 3 are to be understood as examples only.
  • a first step S1 of the method in Figure 2 the map is started.
  • the electric motor 8 is activated in a step S2 to set a target speed. In the present case, this is done without acting on the blower 6 back pressure, which acts in addition to the back pressure generated by the air ducts and the ventilation openings 7.
  • a step S3 an additional counter-pressure is subsequently set or an existing counter-pressure is increased.
  • the operating current of the electric motor 8 changes. Changing the back pressure to a different back pressure value is thus reflected in a changed value of the operating current, the extent to which a current state value of
  • Electric motor 8 represents.
  • This state value is stored in the map in a step S4 as a value indicative of the backpressure.
  • a current acoustic value of the blower 6 is measured at the set value of the back pressure of step S3 in a subsequent step S5.
  • the detected acoustic value is compared in a subsequent step S6 with a predeterminable acoustic limit, here of 45 decibels (A). If the comparison shows that the recorded acoustic value is the
  • a subsequent step S7 the target value Reduced speed of the fan 6 and the electric motor 8 and determines the current acoustic value again.
  • This adaptation of the rotational speed takes place until the determined acoustic value no longer exceeds the predetermined acoustic limit value and in particular corresponds to it (j).
  • the adjusted speed which has led to the permissible acoustic value, stored in the same map as the value of the operating current and assigned to the previously detected value of the operating current.
  • the operating current and the adjusted speed are written in a table.
  • FIG. 4 shows the characteristic curves AK1, AK2 and AK3 resulting from an acoustic measurement.
  • Characteristic AK3 was generated by the method described above, so that the speed of the different back pressures were optimally adapted to the acoustic limit AWG, so regardless of the back pressure always the maximum possible
  • volumetric flow is promoted by the blower 6 while maintaining the acoustic condition.
  • the setpoint speed is adjusted in operation as a function of the back pressure with the aid of the characteristic map KF.
  • FIG. 5 shows, in a simplified representation, a function performed by the control unit 9.
  • the control unit 9 determines the adapted one at regular time intervals t cyclically from the characteristic field KF created by the method described above, in particular with a suitable interpolation
  • Speed n This adapted speed n is preferably transferred via a delay element PT1 to an engine controller 10 of the control device 9 or the drive motor 8.
  • a time constant T of the delay element can be determined how fast the

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Power Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)

Abstract

L'invention concerne un procédé permettant de faire fonctionner un dispositif de ventilation (5) de siège qui présente au moins une soufflerie (6) et au moins une ouverture d'aération (7) agencée dans une surface (4) du siège et en communication fluidique avec la soufflerie (6). La soufflerie (6) est commandée pour le réglage d'au moins une vitesse de rotation théorique, et la vitesse de rotation théorique est adaptée en fonction d'une valeur d'état instantanée (i) de la soufflerie (6) qui dépend d'un flux volumique (V) refoulé par la soufflerie (6). Selon l'invention, la vitesse de rotation adaptée est sélectionnée dans un diagramme caractéristique (KF) en fonction de la valeur d'état instantanée (i), le diagramme caractéristique (KF) étant ou ayant été établi en fonction d'une valeur limite acoustique prescriptible.
PCT/EP2016/064022 2015-06-17 2016-06-17 Procédé et dispositif permettant de faire fonctionner un dispositif de ventilation de siège et dispositif de ventilation de siège WO2016202990A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP16731109.1A EP3310614B1 (fr) 2015-06-17 2016-06-17 Procédé et dispositif permettant de faire fonctionner un dispositif de ventilation de siège et dispositif de ventilation de siège
US15/575,476 US20180162244A1 (en) 2015-06-17 2016-06-17 Method and device for operating a seat ventilation device, seat ventilation device
CN201680033232.4A CN107709089B (zh) 2015-06-17 2016-06-17 用于运行座椅通风设备的方法和装置、座椅通风设备

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015211116.4A DE102015211116A1 (de) 2015-06-17 2015-06-17 Verfahren und Vorrichtung zum Betreiben einer Sitzbelüftungseinrichtung, Sitzbelüftungseinrichtung
DE102015211116.4 2015-06-17

Publications (1)

Publication Number Publication Date
WO2016202990A1 true WO2016202990A1 (fr) 2016-12-22

Family

ID=56178336

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/064022 WO2016202990A1 (fr) 2015-06-17 2016-06-17 Procédé et dispositif permettant de faire fonctionner un dispositif de ventilation de siège et dispositif de ventilation de siège

Country Status (5)

Country Link
US (1) US20180162244A1 (fr)
EP (1) EP3310614B1 (fr)
CN (1) CN107709089B (fr)
DE (1) DE102015211116A1 (fr)
WO (1) WO2016202990A1 (fr)

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
DE102022004186A1 (de) 2022-11-10 2024-05-16 Gentherm Gmbh Klimatisierungseinrichtung

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Also Published As

Publication number Publication date
CN107709089A (zh) 2018-02-16
US20180162244A1 (en) 2018-06-14
EP3310614A1 (fr) 2018-04-25
EP3310614B1 (fr) 2019-05-01
CN107709089B (zh) 2020-01-03
DE102015211116A1 (de) 2016-12-22

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